Function reference • cli

cli progress bars work well with other bits of the semantic cli API. See the ‘Introduction to Progress Bars in cli’ article for an introduction, and the ‘Advanced cli Progress Bars’ article for more advanced topics.

Create and update progress bars

cli_progress_along(): Add a progress bar to a mapping function or for loop

cli_progress_bar() cli_progress_update() cli_progress_done(): cli progress bars

cli_progress_message(): Simplified cli progress messages

cli_progress_output(): Add text output to a progress bar

cli_progress_step(): Simplified cli progress messages, with styling

progress-variables cli__pb_bar pb_bar cli__pb_current pb_current cli__pb_current_bytes pb_current_bytes cli__pb_elapsed pb_elapsed cli__pb_elapsed_clock pb_elapsed_clock cli__pb_elapsed_raw pb_elapsed_raw cli__pb_eta pb_eta cli__pb_eta_raw pb_eta_raw cli__pb_eta_str pb_eta_str cli__pb_extra pb_extra cli__pb_id pb_id cli__pb_name pb_name cli__pb_percent pb_percent cli__pb_pid pb_pid cli__pb_rate pb_rate cli__pb_rate_raw pb_rate_raw cli__pb_rate_bytes pb_rate_bytes cli__pb_spin pb_spin cli__pb_status pb_status cli__pb_timestamp pb_timestamp cli__pb_total pb_total cli__pb_total_bytes pb_total_bytes: Progress bar variables

Progress bars in C/C++

progress-c: The cli progress C API

Progress bar utilities

cli_progress_builtin_handlers(): cli progress handlers

cli_progress_demo(): cli progress bar demo

cli_progress_styles(): List of built-in cli progress styles

cli_progress_num() cli_progress_cleanup(): Progress bar utility functions.

Terminal Colors and Styles

truecolor ansi_palettes ansi_palette_show(): ANSI colors palettes

num_ansi_colors() detect_tty_colors(): Detect the number of ANSI colors to use

bg_black() bg_blue() bg_cyan() bg_green() bg_magenta() bg_red() bg_white() bg_yellow() bg_none() bg_br_black() bg_br_blue() bg_br_cyan() bg_br_green() bg_br_magenta() bg_br_red() bg_br_white() bg_br_yellow() col_black() col_blue() col_cyan() col_green() col_magenta() col_red() col_white() col_yellow() col_grey() col_silver() col_none() col_br_black() col_br_blue() col_br_cyan() col_br_green() col_br_magenta() col_br_red() col_br_white() col_br_yellow() style_dim() style_blurred() style_bold() style_hidden() style_inverse() style_italic() style_reset() style_strikethrough() style_underline() style_no_bold() style_no_blurred() style_no_dim() style_no_italic() style_no_underline() style_no_inverse() style_no_hidden() style_no_strikethrough() style_no_color() style_no_bg_color(): ANSI colored text

style_hyperlink() ansi_has_hyperlink_support() ansi_hyperlink_types(): Terminal Hyperlinks

combine_ansi_styles(): Combine two or more ANSI styles

make_ansi_style(): Create a new ANSI style

ANSI and/or UTF-8 String Manipulation

ansi_align(): Align an ANSI colored string

ansi_collapse(): Collapse a vector into a string scalar

ansi_columns(): Format a character vector in multiple columns

ansi_grep() ansi_grepl(): Like base::grep() and base::grepl(), but for ANSI strings

ansi_has_any(): Check if a string has some ANSI styling

ansi_html(): Convert ANSI styled text to HTML

ansi_html_style(): CSS styles for the output of ansi_html()

ansi_nchar(): Count number of characters in an ANSI colored string

ansi_nzchar(): Like base::nzchar(), but for ANSI strings

ansi_regex(): Perl compatible regular expression that matches ANSI escape sequences

ansi_simplify(): Simplify ANSI styling tags

ansi_strip(): Remove ANSI escape sequences from a string

ansi_strsplit(): Split an ANSI colored string

ansi_strtrim(): Truncate an ANSI string

ansi_strwrap(): Wrap an ANSI styled string to a certain width

ansi_substr(): Substring(s) of an ANSI colored string

ansi_substring(): Substring(s) of an ANSI colored string

ansi_toupper() ansi_tolower() ansi_chartr(): ANSI character translation and case folding

ansi_trimws(): Remove leading and/or trailing whitespace from an ANSI string

utf8_graphemes(): Break an UTF-8 character vector into grapheme clusters

utf8_nchar(): Count the number of characters in a character vector

utf8_substr(): Substring of an UTF-8 string

Format and signal errors with cli formatting

cli_abort() cli_warn() cli_inform(): Signal an error, warning or message with a cli formatted message

format_error() format_warning() format_message(): Format an error, warning or diagnostic message

Rules, Boxes, Trees, Spinners, etc.

This section documents cli functions that create various non-semantic cli output. See the ‘Rules, Boxes and Trees’ article for a quick overiew of most of them.

list_border_styles() boxx(): Draw a banner-like box in the console

demo_spinners(): Show a demo of some (by default all) spinners

get_spinner(): Character vector to put a spinner on the screen

list_spinners(): List all available spinners

symbol list_symbols(): Various handy symbols to use in a command line UI

make_spinner(): Create a spinner

rule(): Make a rule with one or two text labels

spark_bar(): Draw a sparkline bar graph with unicode block characters

spark_line(): Draw a sparkline line graph with Braille characters.

tree(): Draw a tree

Syntax Highlighting

code_highlight(): Syntax highlight R code

code_theme_list(): Syntax highlighting themes

pretty_print_code(): Turn on pretty-printing functions at the R console

ANSI Control Sequences

is_ansi_tty(): Detect if a stream support ANSI escape characters

ansi_hide_cursor() ansi_show_cursor() ansi_with_hidden_cursor(): Hide/show cursor in a terminal

Hashing

hash_animal() hash_raw_animal() hash_obj_animal(): Adjective-animal hash

hash_emoji() hash_raw_emoji() hash_obj_emoji(): Emoji hash

hash_md5() hash_raw_md5() hash_obj_md5() hash_file_md5(): MD5 hash

hash_sha1() hash_raw_sha1() hash_obj_sha1() hash_file_sha1(): SHA-1 hash

hash_sha256() hash_raw_sha256() hash_obj_sha256() hash_file_sha256(): SHA-256 hash

Utilities and Configuration

cat_line() cat_bullet() cat_boxx() cat_rule() cat_print(): cat() helpers

cli-config: cli environment variables and options

cli_debug_doc(): Debug cli internals

cli_fmt(): Capture the output of cli functions instead of printing it

cli_format_method(): Create a format method for an object using cli tools

cli_output_connection(): The connection option that cli would use

cli_sitrep(): cli situation report

console_width(): Determine the width of the console

start_app() stop_app() default_app(): Start, stop, query the default cli application

diff_chr(): Compare two character vectors elementwise

diff_str(): Compare two character strings, character by character

has_keypress_support(): Check if the current platform/terminal supports reading single keys.

is_dynamic_tty(): Detect whether a stream supports \\r (Carriage return)

is_utf8_output(): Whether cli is emitting UTF-8 characters

keypress(): Read a single keypress at the terminal

ruler(): Print the helpful ruler to the screen

test_that_cli(): Test cli output with testthat

vt_output(): Simulate (a subset of) a VT-5xx ANSI terminal

Superseded functions

cli_process_start() cli_process_done() cli_process_failed(): Indicate the start and termination of some computation in the status bar (superseded)

cli_status(): Update the status bar (superseded)

cli_status_clear(): Clear the status bar (superseded)

cli_status_update(): Update the status bar (superseded)